233 lines
7.3 KiB
C
233 lines
7.3 KiB
C
/*
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* Copyright (c) 2006-2021, RT-Thread Development Team
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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* 2017-09-12 Bernard The first version
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* 2021-07-21 Meco Man move to libc/common
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*/
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#ifndef __SYS_SIGNAL_H__
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#define __SYS_SIGNAL_H__
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <stdint.h>
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#include <sys/types.h>
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/* sigev_notify values
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NOTE: P1003.1c/D10, p. 34 adds SIGEV_THREAD. */
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#define SIGEV_NONE 1 /* No asynchronous notification shall be delivered */
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/* when the event of interest occurs. */
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#define SIGEV_SIGNAL 2 /* A queued signal, with an application defined */
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/* value, shall be delivered when the event of */
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/* interest occurs. */
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#define SIGEV_THREAD 3 /* A notification function shall be called to */
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/* perform notification. */
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/* Signal Generation and Delivery, P1003.1b-1993, p. 63
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NOTE: P1003.1c/D10, p. 34 adds sigev_notify_function and
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sigev_notify_attributes to the sigevent structure. */
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union sigval
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{
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int sival_int; /* Integer signal value */
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void *sival_ptr; /* Pointer signal value */
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};
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struct sigevent
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{
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int sigev_notify; /* Notification type */
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int sigev_signo; /* Signal number */
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union sigval sigev_value; /* Signal value */
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void (*sigev_notify_function)( union sigval );
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/* Notification function */
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void *sigev_notify_attributes; /* Notification Attributes, really pthread_attr_t */
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};
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struct siginfo
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{
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uint16_t si_signo;
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uint16_t si_code;
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union sigval si_value;
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};
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typedef struct siginfo siginfo_t;
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#define SI_USER 0x01 /* Signal sent by kill(). */
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#define SI_QUEUE 0x02 /* Signal sent by sigqueue(). */
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#define SI_TIMER 0x03 /* Signal generated by expiration of a timer set by timer_settime(). */
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#define SI_ASYNCIO 0x04 /* Signal generated by completion of an asynchronous I/O request. */
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#define SI_MESGQ 0x05 /* Signal generated by arrival of a message on an empty message queue. */
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typedef void (*_sig_func_ptr)(int);
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typedef unsigned long sigset_t;
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struct sigaction
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{
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_sig_func_ptr sa_handler;
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sigset_t sa_mask;
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int sa_flags;
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};
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/*
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* Structure used in sigaltstack call.
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*/
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typedef struct sigaltstack
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{
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void *ss_sp; /* Stack base or pointer. */
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int ss_flags; /* Flags. */
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size_t ss_size; /* Stack size. */
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} stack_t;
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#define SIG_SETMASK 0 /* set mask with sigprocmask() */
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#define SIG_BLOCK 1 /* set of signals to block */
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#define SIG_UNBLOCK 2 /* set of signals to, well, unblock */
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#define sigaddset(what,sig) (*(what) |= (1<<(sig)), 0)
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#define sigdelset(what,sig) (*(what) &= ~(1<<(sig)), 0)
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#define sigemptyset(what) (*(what) = 0, 0)
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#define sigfillset(what) (*(what) = ~(0), 0)
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#define sigismember(what,sig) (((*(what)) & (1<<(sig))) != 0)
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int sigprocmask (int how, const sigset_t *set, sigset_t *oset);
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int sigpending (sigset_t *set);
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int sigsuspend (const sigset_t *set);
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#include "time.h"
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int sigtimedwait(const sigset_t *set, siginfo_t *info, const struct timespec *timeout);
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int sigwait(const sigset_t *set, int *sig);
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int sigwaitinfo(const sigset_t *set, siginfo_t *info);
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int raise(int sig);
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int sigqueue(pid_t pid, int signo, const union sigval value);
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int sigaction(int signum, const struct sigaction *act, struct sigaction *oldact);
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#ifdef __ARMCC_VERSION
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#define SIGHUP 1
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/* #define SIGINT 2 */
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#define SIGQUIT 3
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/* #define SIGILL 4 */
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#define SIGTRAP 5
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/* #define SIGABRT 6 */
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#define SIGEMT 7
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/* #define SIGFPE 8 */
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#define SIGKILL 9
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#define SIGBUS 10
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/* #define SIGSEGV 11 */
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#define SIGSYS 12
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#define SIGPIPE 13
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#define SIGALRM 14
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/* #define SIGTERM 15 */
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#define SIGURG 16
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#define SIGSTOP 17
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#define SIGTSTP 18
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#define SIGCONT 19
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#define SIGCHLD 20
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#define SIGTTIN 21
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#define SIGTTOU 22
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#define SIGPOLL 23
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#define SIGWINCH 24
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#define SIGXCPU 24 /* exceeded CPU time limit */
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#define SIGXFSZ 25 /* exceeded file size limit */
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#define SIGVTALRM 26 /* virtual time alarm */
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/* #define SIGUSR1 25 */
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/* #define SIGUSR2 26 */
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#define SIGRTMIN 27
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#define SIGRTMAX 31
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#define NSIG 32
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#include <signal.h>
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#elif defined(__IAR_SYSTEMS_ICC__)
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#define SIGHUP 1
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#define SIGINT 2
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#define SIGQUIT 3
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#define SIGILL 4
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#define SIGTRAP 5
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/* #define SIGABRT 6 */
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#define SIGEMT 7
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#define SIGFPE 8
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#define SIGKILL 9
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#define SIGBUS 10
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#define SIGSEGV 11
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#define SIGSYS 12
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#define SIGPIPE 13
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#define SIGALRM 14
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#define SIGTERM 15
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#define SIGURG 16
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#define SIGSTOP 17
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#define SIGTSTP 18
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#define SIGCONT 19
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#define SIGCHLD 20
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#define SIGTTIN 21
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#define SIGTTOU 22
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#define SIGPOLL 23
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#define SIGWINCH 24
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#define SIGXCPU 24 /* exceeded CPU time limit */
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#define SIGXFSZ 25 /* exceeded file size limit */
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#define SIGVTALRM 26 /* virtual time alarm */
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#define SIGUSR1 25
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#define SIGUSR2 26
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#define SIGRTMIN 27
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#define SIGRTMAX 31
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#define NSIG 32
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#include <signal.h>
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#elif defined(__GNUC__)
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#define SIGHUP 1 /* hangup */
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#define SIGINT 2 /* interrupt */
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#define SIGQUIT 3 /* quit */
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#define SIGILL 4 /* illegal instruction (not reset when caught) */
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#define SIGTRAP 5 /* trace trap (not reset when caught) */
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#define SIGIOT 6 /* IOT instruction */
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#define SIGABRT 6 /* used by abort, replace SIGIOT in the future */
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#define SIGEMT 7 /* EMT instruction */
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#define SIGFPE 8 /* floating point exception */
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#define SIGKILL 9 /* kill (cannot be caught or ignored) */
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#define SIGBUS 10 /* bus error */
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#define SIGSEGV 11 /* segmentation violation */
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#define SIGSYS 12 /* bad argument to system call */
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#define SIGPIPE 13 /* write on a pipe with no one to read it */
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#define SIGALRM 14 /* alarm clock */
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#define SIGTERM 15 /* software termination signal from kill */
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#define SIGURG 16 /* urgent condition on IO channel */
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#define SIGSTOP 17 /* sendable stop signal not from tty */
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#define SIGTSTP 18 /* stop signal from tty */
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#define SIGCONT 19 /* continue a stopped process */
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#define SIGCHLD 20 /* to parent on child stop or exit */
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#define SIGCLD 20 /* System V name for SIGCHLD */
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#define SIGTTIN 21 /* to readers pgrp upon background tty read */
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#define SIGTTOU 22 /* like TTIN for output if (tp->t_local<OSTOP) */
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#define SIGIO 23 /* input/output possible signal */
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#define SIGPOLL SIGIO /* System V name for SIGIO */
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#define SIGXCPU 24 /* exceeded CPU time limit */
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#define SIGXFSZ 25 /* exceeded file size limit */
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#define SIGVTALRM 26 /* virtual time alarm */
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#define SIGPROF 27 /* profiling time alarm */
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#define SIGWINCH 28 /* window changed */
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#define SIGLOST 29 /* resource lost (eg, record-lock lost) */
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#define SIGUSR1 30 /* user defined signal 1 */
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#define SIGUSR2 31 /* user defined signal 2 */
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#define NSIG 32 /* signal 0 implied */
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#ifndef _SIGNAL_H_
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/* Some applications take advantage of the fact that <sys/signal.h>
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* and <signal.h> are equivalent in glibc. Allow for that here. */
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#include <signal.h>
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#endif
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#endif
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#ifdef __cplusplus
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}
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#endif
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#endif
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